pub enum TryRecvError {
Empty,
Disconnected,
}
Expand description
This enumeration is the list of the possible reasons that try_recv
could
not return data when called. This can occur with both a channel
and
a sync_channel
.
Variants§
Empty
This channel is currently empty, but the Sender(s) have not yet disconnected, so data may yet become available.
Disconnected
The channel’s sending half has become disconnected, and there will never be any more data received on it.
Trait Implementations§
source§impl Clone for TryRecvError
impl Clone for TryRecvError
source§fn clone(&self) -> TryRecvError
fn clone(&self) -> TryRecvError
Returns a copy of the value. Read more
source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for TryRecvError
impl Debug for TryRecvError
source§impl Display for TryRecvError
impl Display for TryRecvError
source§impl Error for TryRecvError
impl Error for TryRecvError
source§fn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
1.30.0 · source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
1.24.0 · source§impl From<RecvError> for TryRecvError
impl From<RecvError> for TryRecvError
source§fn from(err: RecvError) -> TryRecvError
fn from(err: RecvError) -> TryRecvError
Converts a RecvError
into a TryRecvError
.
This conversion always returns TryRecvError::Disconnected
.
No data is allocated on the heap.
source§impl PartialEq for TryRecvError
impl PartialEq for TryRecvError
source§fn eq(&self, other: &TryRecvError) -> bool
fn eq(&self, other: &TryRecvError) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.impl Copy for TryRecvError
impl Eq for TryRecvError
impl StructuralPartialEq for TryRecvError
Auto Trait Implementations§
impl Freeze for TryRecvError
impl RefUnwindSafe for TryRecvError
impl Send for TryRecvError
impl Sync for TryRecvError
impl Unpin for TryRecvError
impl UnwindSafe for TryRecvError
Blanket Implementations§
source§impl<T> Also for T
impl<T> Also for T
source§impl<T, Res> Apply<Res> for Twhere
T: ?Sized,
impl<T, Res> Apply<Res> for Twhere
T: ?Sized,
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> ByteSize for T
impl<T> ByteSize for T
source§const BYTE_ALIGN: usize = _
const BYTE_ALIGN: usize = _
The alignment of this type in bytes.
source§fn byte_align(&self) -> usize
fn byte_align(&self) -> usize
Returns the alignment of this type in bytes.
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<T> ExtAny for Twhere
T: Any,
impl<T> ExtAny for Twhere
T: Any,
source§fn as_any_mut(&mut self) -> &mut dyn Anywhere
Self: Sized,
fn as_any_mut(&mut self) -> &mut dyn Anywhere
Self: Sized,
source§impl<T> Mem for Twhere
T: ?Sized,
impl<T> Mem for Twhere
T: ?Sized,
source§const NEEDS_DROP: bool = _
const NEEDS_DROP: bool = _
Whether dropping values of this type matters.
source§fn mem_needs_drop(&self) -> bool
fn mem_needs_drop(&self) -> bool
Returns
true
if dropping values of this type matters.source§fn mem_forget(self)where
Self: Sized,
fn mem_forget(self)where
Self: Sized,
Forgets about
self
without running its destructor.source§fn mem_replace(&mut self, other: Self) -> Selfwhere
Self: Sized,
fn mem_replace(&mut self, other: Self) -> Selfwhere
Self: Sized,
Replaces
self
with other, returning the previous value of self
.source§fn mem_take(&mut self) -> Selfwhere
Self: Default,
fn mem_take(&mut self) -> Selfwhere
Self: Default,
Replaces
self
with its default value, returning the previous value of self
.source§fn mem_swap(&mut self, other: &mut Self)where
Self: Sized,
fn mem_swap(&mut self, other: &mut Self)where
Self: Sized,
Swaps the value of
self
and other
without deinitializing either one.source§fn mem_as_bytes(&self) -> &[u8] ⓘ
fn mem_as_bytes(&self) -> &[u8] ⓘ
Available on crate feature
unsafe_slice
only.